high power tube amps vs ss

I'd first get your speaker selection worked out, then worry about amplification. Speaker-amp matching is so key. And speakers are the most important component in the chain. Settle on them, then start figuring out a good amp to match them.

I will add this to what Al said: It is generally thought to be a good sign when a typical solid-state amp doubles in power as the impedance of the speaker is halved. A sign of a good power supply, IIRC.

And yes, generalizing about amps based solely on the amp being solid-state or tube is certainly problematic. But this doubling-down into lower impedance is something that applies for the majority of solid-state amps. Your amps happen to be an exception to that rule of thumb.

Al, I am surprised that curiosity hasn't gotten the better of you.